Screw lift for shoes



y 1.962 F. PORTELLI 4 3,034,234

SCREW LIFT FOR SHOES Filed June 24, 1960 INVENTOR. FRANK PORTELLI A TTOP/VEY rates This invention relates ot wearing shoes and more particularly to a new and useful improvement in a lift for a ladys shoe heel.

A principal object of the present invention is to provide a ladys shoe heel with a cushioned lift which is readily attached and detached from the heel.

Another object is to provide a lift for a ladys shoe heel having a screw-threaded shank adapted to be inserted into a threaded socket in the body of the heel.

A further object of the invention is to provide a readily detachable lift for a ladys French type shoe heel.

It is also proposed to provide a detachable metal lift for a ladys French type shoe heel, the lift having a cushioned wearing surface.

It is also an object of the invention to provide a lift for a ladys French type shoe heel that is attractive in appearance and sturdy in use and economical to manufacture.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claim in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

FIG. 1 is a central vertical sectional view of a ladys shoe heel embodying one form of the invention.

FIG. 2 is a bottom plan view of the lift of FIG. 1 as seen from the line 2-2 of FIG. 1.

FIG. 3 is a view similar to FIG. 1 showing a ladys shoe heel embodying a modified form of the invention.

FIG. 4 is a disassembled perspective View of the lift shown in FIG. 3.

FIG. 5 is a perspective view of another modified form of lift for a ladys shoe heel.

FIG. 6 is a disassembled central vertical sectional view of the bottom of a ladys French type shoe heel embodying yet another modified form of the invention.

FIG. 7 is a view similar to FIG. 2 showing a still further modified form of lift.

FIG. 8 is a similar view of yet another modified form of lift.

FIG. 9 is a view similar to FIG. 4 showing a lift slightly modified from the lift of FIG. 4 and the other modified lifts.

FIG. 10 is a vertical sectional view through the center of a modified form of shank.

FIG. 11 is a vertical and sectional view of yet another modified form of shank.

Referring in detail to the drawings, in FIG. 1 one half of a ladys shoe heel i=3 of the French type is shown. This heel comprises a body 12 having a wide wooden upper section 14 and an elongated narrow metal bottom section 16 secured to the upper section by adhesive or the like. The rear and sides of the body are covered with a layer of plastic 18, which may be ornamented if desired.

In accordance with the invention, a central narrow threaded bore 20 is formed in the bottom surface of the bottom section 16 of the body. A threaded shankZZ of a lift 24 is threaded into the bore 20. The lift is formed with a metal circular body 26 tapered downwardly and outwardly as Viewed in FIG. 1 and the narrow end of the body is of the same diameter as the diameter of the lower surface of the bottom section 16 and of the cover 18, so that when the lift is driven home, the upper ice fiat surface of the lift body 26 seats on the lower surface of the bottom section 16 and is flush with the outer surface of the bottom section.

The body 26 of the lift is formed with a circular shallow recess 28. A thick rubber disc 30 is fitted in recess 28 and protrudes outwardly of the body of the lift as shown in FIG. 1. The outer end of the disc 30 serves as a wearing surface for the heel.

In the modification of the invention shown in FIG. 3, the heel It) has a wear lift or top lift 26' shaped similarly to the heel It? with a wide upper section 14 and an elongated narrow bottom section 16'.

The narrow bottom section 16 is formed with an elongated central opening 29 extending the length of the narrow bottom section and formed with a smooth wall throughout. A modified form of lift having a solid shank 52 screw threaded at its bottom as indicated at 54 is inserted into the central opening 20'.

The body 26 of the lift is formed with a circular shallow recess 28 opening downwardly and with an elongated tubular internally screw-threaded socket 56 opening upwardly as viewed in FIG. 3. A thick rubber disc 3% is fitted in recess 28 and protrudes outwardly of the body of the lift as shown in FIG. 3. The outer end of the disc 3%) serves as a wearing surface for the heel.

A lift assembly similar to the lift assembly of FIG. 3 is shown in FIG. 9. This assembly comprises a lift 24 with the recess in its lower face accommodating a rubber disk 36 and with an upstanding solid threaded shank 22 in place of the tubular shank Sdof FIG. 3. In place of the solid supporting member 52 of FIG. 3, FIG.

9 shows a tubular supporting member 32 having internal screw threads 36 at its bottom end. The tubular supporting member has a plug 34 closing the upper end thereof. The bottom end of the tubular supporting member is threaded on to the threaded shank 22'.

In FIG. 5; a modified form of lift is shown that differs from the lift 24 of FIG. 1 in that the threaded shank 22 is elongated. This form of lift is adapted to be used with a heel having an elongated central recess in the lower section of the heel. The shank carries a lift assembly including a lift 26 and supported rubber disk 30 similar to the lift assembly .of FIG. 1.

' Inthe modified form of heel 1% shown in FIG. 6, the elongated narrow body section 16* of the body of the heel is formed with an elongated central smooth walled opening Ztl similar to the opening 20' of the heel 10' of FIG. 3. The body section 16* is formed of lightweight metal such as aluminum. A tubular member 49 is fitted into the opening 20* and carried on the bottom end of member 49 is an annular disk-shaped metal member 42 having flat top and bottom surfaces. The member 42 is seated in a similar shaped recess 44 formed in the bottom end of the bottom section 16* with its bottom surface flush with the bottom surface of the bottom section. The disk-shaped member 42 is formed with a threaded stud 46 extending from the bottom surface thereof. p v v A lift 24* is provided for attachment to the threaded stud t6 by' means of a central threaded socket 48 in the in plan and configuration has three straight sides 50 and only one curved or round side 52.

The modified form of lift 24 shown in FIG. 8 differs from the form of lift 24" shown in FIG. 7 in that the rubber disk 3W is shaped similar to the body 6 in plan.

FIG. 10 illustrates a modified form of elongated cylindri c'al supportin g member 58 for a lift.

The member 58 has a solid 'body 61 with an enlarged tubular bottom end 62 formed with internal thread 64 to receive the threaded shank of a lift, such as the shank 22' of the lift body 24' of'FlG. 9. v

The supporting member 66 shown in FIG. 11 differs from the supporting member 58 of FIG. 10 in that the sleeve socket 68 is separate from the elongated solid body 66 instead of being integral therewith and is threaded on the threaded lower end of 7 i) of the member 66. 1

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself'to the precise construction herein disclosed andthat various changes and modifications may be made within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new, and desired to secure by United States Letters Patent is:

. A ladys heel of the French heel type having a tapered body with a Wide upper section and an elongated narrow lower section, the narrow lower section having a central opening extending therethrough and terminating in a shallow-central recess in the bottom end of the lower section, a metal tubular member fitted in said opening, a

metal circular disk carried on the bottom of said tubular member and seated in the shallow recess in the bottom end of the lower section, a threaded stud extending from the bottom surface of said disk, and a lift having a circular solid tapered body-attached to said stud, said attachment constituted by a threaded socket opening in the top end of the tapered body threaded over said stud, said lift body having a shallow central recess on the bottom end thereof, and a rubber disk fitted in said recess and protruding outwardly thereof, said disk serving as a Wearing surface for the heel.

References Cited in the file of this patent UNITED STATES PATENTS 1,901,340 Taylor Mar. 14, 1933 1,977,777 Rhodes Oct. 23, 1934 2,544,878 Dratler a Mar. 13, 1951 2,852,866 Quirk Sept. 23, 1958 2,935,799 Ronci May 10, 1960 2,935,800 Ronci May 10, 1960 FOREIGN PATENTS 1,199,909 France June 22, 1959 1,208,888 France Sept.t14, 1959 1,214,600 France Nov. 9, 1959 1,227,113

France Feb. 29, 1960 

